Tamping-machine.



No. 826,692. PATENTED JULY 24, 1906.

R. SBXTON. TAM-PING MACHINE. APPLICATION FILED 00T.27. 1905 2 SHEETS-SHEET 1.

No. 826,692. PATENTED JULY 24, 1906. R. D. SEXTON.

TAMPING MACHINE.

APPLICATION FILED 00127, 1905 2 SHEETSSHEET 2.

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1 form of trip-finger.

UNITED STATES PATENT OFFICE. v ROBY D. SEXTON, OF GRASSY' CREEK,. NORTH CAROLINA. TAMPlNG-MACHINE- Specification of Letters Patent. Application ma October 27,1905. semi No. 284.700.

Patented July 24, 1906.

To all whom it may concern.-

Be it known that I, ROBY D. SEXTON, a citizen of the United States, residin at Grassy Creek, in the county of Ashe, tate of North Carolina, have invented certain new and useful Improvements in Tampin Machines; and, I do hereby declare the following to be a full, clear, andexact descri tion of the invention,"such as will enab e others skilled in the"a"l"t"to which it appertains to make and use tile same.

This invention relats'to tamping-machines for use in tamping'ra'vel or clayunder railway-ties.

The object of the invention isto provide a machine of this character including a series of tamping-picks adapted to be operated one after the other to tamp gravel or the like under railway-tics and to so mount the machine on a suitable truck that it ma be turned to tamp the sides or the end the ties, as desired.

A further object of the invention is to provide means for operating any one or any combination of picks of the series without operating the remainder of the picks.

I accom lish these and other objects by means of t e construction shown in theaccompanying drawings, in which- Figure 1 is a front elevation of my machine. Fig. 2 is a side elevation of the same. Fig. 3 is a sectional view on the line 3 3 of Fig. 1. Fig. 4 is a vertical longitudinal sectional view of one of the tamping-picks. Fig. 5 is a detail sectionalview of a modified Referring to the drawings, 6 denotes the platform of a truck, and 7 the wheels su porting the same- Centrally of the true platform 6 is a circular track 8, and in the platform 6 or the truck concentric of the track 8 is a pivot-bolt 9. Supporting-beams are pivoted at their inner ends to the said bolt 9 radiate therefrom, and rest on the track, and on the outer ends of the said beams 10 is supported my machine. The

said. machine includes a base 11, having" mounted at each of its ends standards 12. Each of the standards comprises a base 13, spaced uprights 14 and 14., and a to beam 15. Connecting the beams 15 and racing the standards 12 is a cross-beam 16, and adjacent the lower ends of the standards 12 is a second beam 17. Each of the uprights 14 and 14' is recessed, as at 18, and the said recc sses are diagonal of the beams and in alinement. with each other. A bar 19, havi a rack on its u per edge, is slidably 'sposed in each of the pairs of recesses in each of the standards 12 and is slanted downwardly and forwardly of the machine. On the upright 14 is pivoted a pawl 21, which is ada ted for engagement with the said rack 20 to old the bar 19 in adjusted position.

Mounted in bearings 22 and 23 are shafts 24 and 25, respectively, the shaft 24 bein revoluble and the shaft 25 being 'fixe Mounted to rock on the shaft 25 are a series of tampiiig-picks 26, and arranged on the shaft 24 is a helical series of trip-fingers 27, and upon each end of the shaft24 is fixed a crank-handle 28, b means of which the said shaft may be revo ved to bring the said fingers successively in engagement with the heads 29 of the tamping-picks. Each of the trip-fingers 29 is curved, as shown, and engages an antifriction-roller 30, mounted between ears 31, formed on the head 29 of its res ective tam ing-picks 26. The pipposite en of the sai picks are curved an shouldered, as at 32, and in the shouldered portion 32 on each pick is secured, by means of a bolt 33, the shank of a pick-blade 34, as

shown in Fig. 4. The tamping-picks 26 are held in spaced relation by means of spacing-collars 34, secured on the shaft by setscrews 34, and the said picks 26 are returned to their normal position by means of helical springs 35, which are connected at one of their ends to the said picks and at their other end to the beam 17 It will be understood that by adjusting the bar 19 up'or down the picks may be adjusted for use on different thicknesses of ties. On each of the uprights 14 is a stub-shaft 36, on

which is mounted lever 37, and connected to the lower end of each of the levers 37 is one end of a rod 38. The opposite ends of the levers 37 are provided with handles 38, which when depressed rock the tampingpicks 26 to a vertical position, after which all of the said picks or any combination of the same or any one of the same may be secured in a vertical position and out of enga ement with the trip-fingers 27 by means 0 hooks 39 on the brace 16.

In the modified form shown in Fig. 5 I provide each of the trip-fingers 27 with an .antifriction-roller 40 in place of the roller 30 on the tam ing-picks 26.

What I c aim as new is 1. A machine of the class described comspaced standards, a fixed shaft, a series o tamping-tools loosely mounted -on said shaft, and means for rocking said tools successively.

2. A machine of the class described, com-- prising spaced standards, a fixed shaft, a series o tamping-tools mounted to rock on said shaft, nieans for rocking said tools successively, and means for returning said tools to their normal position.

3. A machine of the class described comrising spaced standards, rack-bars carried y said standards and adjustable thereon, a

fixed shaft mounted in said bars, a rotatable shaft mounted in said bars, tamping-too'ls carried by said fixed shaft, means earned by said rotatable shaft for rocking said tools,

and means for returning said tools to their normal position.

A machine of the class described comspaced standards, rack-bars carried y and standards, pawls arranged :for .engagement with said rack-bars to' hold the same in adjusted position, (a fixed shaft and a rotatable shaft mounted in said rack-bars, tamp'ing-tools mounted to rock on said fixed shaft, antifn'ction devices carried by said tools,

trip-fingers carried by said rotatable shaft for engagement with the said tools to rock the same, means for rotating the said shaft, and springs for returning the said tools to their normal position.

5. A machine of the class described comspaced standards, rack-bars carried y said standards, ,pawls arranged for Yengagement with said rack-bars-to hold the same in adjusted position, a fined shaft and a rotatable shaft mounted in said rack-bars, lagging-tools mounted to rock on said fixed antifriction devices carried by said tools, trip-fingers carried by said rotatable shaft for engagement with the said tools to rock the same, means for rotating the said shaft, and means for moving said tools to an inoperative osition.

6. A mac 'ne of the class described comrising spaced standards, rack-bars carried y said standards, paw'ls arranged for engagement with said rack-bars to hold the same in adjusted position a fixed shaft and a rotatable shaft mounte in said rack-bars,

near 19. saxmos.

Witnesses: I

JNo. IKILBY, C. R. PEACOCK.

"tamfping-tools mounted to rock on said .fixed 

